Window-ventilating device.



W. H. WITMER.

WINDOW VENTILATING DEVICE.

APPLICATION FILED AUG.28,1909.

Patented Oct. 11, 1910.

Z SHBETS-SHEET 1.

Guam

W/ 5 avwwtw I W H. .WITMER. WINDOW VENTILATING DEVICE.

' APPLICATION FILED AUG. 28, 1909. 972,31 1 Patented Oct. 11,1910.

2 SHEETS-4111MB 2- THE NORRIS PETERS ca.. wnsamaram a c.

WILLIAM H. WITMER, OF PHILADELPHIA, PENNSYLVANIA.

WINDOW-VENTILATING DEVICE.

Specification of Letters Patent.

Patented Oct. 11, 1910.

Application filed August 28, 1909. Serial No. 515,071.

To all whom it may concern:

Be it known that I, WILLIAM HAROLD WIT- MER, citizen of the UnitedStates, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Window-Ventilating Devices, of which the following is aspecification.

This invention relates to improvements in window ventilating devices andembraces the construction of an improved device adapted to be adjustablysecured on a window frame.

One of the objects of the invention is the construction of a devicecomprising end members adapted to hold a flexible air deflecting memberoutwardly of a window and means whereby the end members are adjustablysupported on the window.

Another object is to provide a shield to shed rain and to prevent rainfrom entering the room.

With the above and other objects in view the invention embraces certaincombinations, constructions and arrangements of parts, clearlyillustrated in the accompanying drawing, in which Figure 1 is a frontelevation of the device mounted on a window, Fig. 2 is a side elevationshowing the device placed in operative position on a window, which isshown partly in section, Fi 2 is a detail elevation of a holding member,Fig. 3 is a perspective view of the air deflector frame, Fig. 4 is aside elevation of one of the end members of said frame, Fig. 5 is adetail end view showing a modified manner of arranging the flexible airdeflector of the frame, and Fig. 6 is a detail View of a framesupportingamember.

eferring to the accompanylng drawings illustrating the invention 1denotes a window frame having a window 2 movable thereon.

On the bottom member of the window frame 1 a base member 3 ispositioned. The base member 3 supports a bearing member 4, which isformed with a hook 5 on one end thereof. A rack 6 is secured to the basemember by a clamping screw 7, said rack being formed with a plurality ofspaced teeth 8. This arrangement is duplicated on either end of the basemember.

A deflector, comprising triangular shaped end boards or members 9 andiron or metallic frames 10, which frames are provided with prongs orfastening devices 11, and a section of textile material 12, is securedmovably on the bearing members and the racks by means of supports 13,which are secured to said end boards 9 and are provided with lateralbearing pins 14, engaging with projections 15. The pins 14 engage withthe spaces between the teeth 8 of the racks 6, and the projections 15engage with the hooks 5 of the bearing members 4. The upper edge of thedeflector section 12 is provided with a rope or other reinforcement 16,and the middle portions of the frames 10 are bent on themselves at 10 toprovide a rest therefor, which rest engages with the base 3.

When secured to the window frame the device will not interfere with theoperation of the window and will effectively deflect air from theexterior to the interior of the room. In its extreme outer position theframe of the device occupies the position shown in full lines in Fig. 2and in its extreme inner position the device occupies the positionindicated in dotted lines in this figure, the range of adjustment beingregulated by the number of teeth on the rack 6.

Having described my invention I claim In combination, a base adapted tobe positioned on a frame, and frames having projections, bearing membershaving hooks engaged by projections positioned on the base, rackssecured to the base, pins on the end members engaging the racks, meansfor securing the racks on the base, a textile section secured to the endframes, and boards secured to the end frames.

In testimony whereof I affix my signature, in presence of two witnesses.

WILLIAM H. WITMER.

Witnesses:

GEORGE F. Po'r'rs, WILLIAM HENRY WnIoK.

